Unknown bird singing in primary forest close to Rio Ñambí Reserve's cabaña, on the pacific slope. The bird vocalised twice in the late evening and seemed to be on or close to the ground. Though it sounds like a quite distinctive song, I can't identify it, any comment is very welcome!

Young bird calling - Audio extracted from video recorded with Canon EOS 7D, cropped and edited only to remove much lower pitch human voices on the foreground with the help of an expert recordist, Andrew Spencer